MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL

51

Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B-B21F195

B

PERFORMING OPERATIONS; TRANSPORTING

23

MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR

P

OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS

6

Restoring or reconditioning objects

04

Repairing fractures or cracked metal parts or products, e.g. castings

G

PHYSICS

01

MEASURING; TESTING

N

INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

27

Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means

72

by investigating magnetic variables

82

for investigating the presence of flaws

90

using eddy currents

G

PHYSICS

01

MEASURING; TESTING

N

INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

29

Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object

(EN)Method and apparatus for determining and possibly eliminating defects on metal slabs, whereby at least the upper and lower sides of the slab are subdivided into different areas by means of a bi-dimensional system of coordinates. The maximum depth of defects is determined for each area by using at least one device finding the defects, and the data obtained are stored in a memory. Facilities are provided for eliminating the defects by processing, or for eliminating a defective part of a slab or an entire slab as scrap-iron. These facilities are operated on the basis of the maximum depth of defects of each area and slabs which are partially or partially discarded as scrap-iron are replaced by new slabs in view of the rolling program selected. The slabs from which defective parts have been removed are fed back to the rolling process as new slabs. (FR)Procede et dispositif pour la determination et l"elimination eventuelle de defauts sur des brames metalliques, ou au moins les surfaces superieure et inferieure de la brame sont subdivisees en regions de coordonnees au moyen d"un systeme de coordonnees a deux dimensions. On determine, au moyen d"au moins un dispositif de determination de defauts, la profondeur de defaut maximale pour chaque region de coordonnees et on stocke ces donnees dans une memoire. Des installations sont prevues pour eliminer les defauts par traitement ou pour l"elimination d"une partie defectueuse d"une brame ou d"une brame complete en tant que ferraille. Ces installations sont commandees sur la base de profondeurs de defaut maximales par region de coordonnees et les brames partiellement ou totalement eliminees en tant que ferraille sont remplacees par de nouvelles brames en tenant compte du programme de laminage choisi. Les brames amputees de leurs parties defectueuses sont reintroduites dans le processus de laminage a titre de nouvelles brames.